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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  fs: fix address space warnings in ioctl_fiemap()
  aio: check return value of create_workqueue()
  hpfs_setattr error case avoids unlock_kernel
  compat: copy missing fields in compat_statfs64 to user
  compat: update comment of compat statfs syscalls
  compat: remove unnecessary assignment in compat_rw_copy_check_uvector()
  fs: FS_POSIX_ACL does not depend on BLOCK
  fs: Remove unlikely() from fget_light()
  fs: Remove unlikely() from fput_light()
  fallocate should be a file operation
  make the feature checks in ->fallocate future proof
  staging: smbfs building fix
  tidy up around finish_automount()
  don't drop newmnt on error in do_add_mount()
  Take the completion of automount into new helper
This commit is contained in:
Linus Torvalds 2011-01-17 11:00:09 -08:00
parent af575e2d2e ecf5632dd1
commit 235646a486
24 changed files with 515 additions and 524 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/filesystems/Locking
View File

@ -60,7 +60,6 @@ ata *);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *);
void (*truncate_range)(struct inode *, loff_t, loff_t);
long (*fallocate)(struct inode *inode, int mode, loff_t offset, loff_t len);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len);
locking rules:
@ -88,7 +87,6 @@ getxattr: no
listxattr: no
removexattr: yes
truncate_range: yes
fallocate: no
fiemap: no
Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on
victim.
@ -437,6 +435,7 @@ prototypes:
ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *,
size_t, unsigned int);
int (*setlease)(struct file *, long, struct file_lock **);
long (*fallocate)(struct file *, int, loff_t, loff_t);
};
locking rules:

4
drivers/staging/smbfs/dir.c
View File

@ -283,7 +283,7 @@ static int smb_compare_dentry(const struct dentry *,
unsigned int, const char *, const struct qstr *);
static int smb_delete_dentry(const struct dentry *);
static const struct dentry_operations smbfs_dentry_operations =
const struct dentry_operations smbfs_dentry_operations =
{
.d_revalidate = smb_lookup_validate,
.d_hash = smb_hash_dentry,
@ -291,7 +291,7 @@ static const struct dentry_operations smbfs_dentry_operations =
.d_delete = smb_delete_dentry,
};
static const struct dentry_operations smbfs_dentry_operations_case =
const struct dentry_operations smbfs_dentry_operations_case =
{
.d_revalidate = smb_lookup_validate,
.d_delete = smb_delete_dentry,

17
fs/Kconfig
View File

@ -30,15 +30,6 @@ config FS_MBCACHE
source "fs/reiserfs/Kconfig"
source "fs/jfs/Kconfig"
config FS_POSIX_ACL
# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs/nfs4)
#
# NOTE: you can implement Posix ACLs without these helpers (XFS does).
# Never use this symbol for ifdefs.
#
bool
default n
source "fs/xfs/Kconfig"
source "fs/gfs2/Kconfig"
source "fs/ocfs2/Kconfig"
@ -47,6 +38,14 @@ source "fs/nilfs2/Kconfig"
endif # BLOCK
# Posix ACL utility routines
#
# Note: Posix ACLs can be implemented without these helpers. Never use
# this symbol for ifdefs in core code.
#
config FS_POSIX_ACL
def_bool n
config EXPORTFS
tristate

2
fs/aio.c
View File

@ -87,7 +87,7 @@ static int __init aio_setup(void)
aio_wq = create_workqueue("aio");
abe_pool = mempool_create_kmalloc_pool(1, sizeof(struct aio_batch_entry));
BUG_ON(!abe_pool);
BUG_ON(!aio_wq || !abe_pool);
pr_debug("aio_setup: sizeof(struct page) = %d\n", (int)sizeof(struct page));

113
fs/btrfs/file.c
View File

@ -24,6 +24,7 @@
#include <linux/string.h>
#include <linux/backing-dev.h>
#include <linux/mpage.h>
#include <linux/falloc.h>
#include <linux/swap.h>
#include <linux/writeback.h>
#include <linux/statfs.h>
@ -1237,6 +1238,117 @@ static int btrfs_file_mmap(struct file *filp, struct vm_area_struct *vma)
return 0;
}
static long btrfs_fallocate(struct file *file, int mode,
loff_t offset, loff_t len)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct extent_state *cached_state = NULL;
u64 cur_offset;
u64 last_byte;
u64 alloc_start;
u64 alloc_end;
u64 alloc_hint = 0;
u64 locked_end;
u64 mask = BTRFS_I(inode)->root->sectorsize - 1;
struct extent_map *em;
int ret;
alloc_start = offset & ~mask;
alloc_end = (offset + len + mask) & ~mask;
/* We only support the FALLOC_FL_KEEP_SIZE mode */
if (mode & ~FALLOC_FL_KEEP_SIZE)
return -EOPNOTSUPP;
/*
* wait for ordered IO before we have any locks. We'll loop again
* below with the locks held.
*/
btrfs_wait_ordered_range(inode, alloc_start, alloc_end - alloc_start);
mutex_lock(&inode->i_mutex);
ret = inode_newsize_ok(inode, alloc_end);
if (ret)
goto out;
if (alloc_start > inode->i_size) {
ret = btrfs_cont_expand(inode, alloc_start);
if (ret)
goto out;
}
ret = btrfs_check_data_free_space(inode, alloc_end - alloc_start);
if (ret)
goto out;
locked_end = alloc_end - 1;
while (1) {
struct btrfs_ordered_extent *ordered;
/* the extent lock is ordered inside the running
* transaction
*/
lock_extent_bits(&BTRFS_I(inode)->io_tree, alloc_start,
locked_end, 0, &cached_state, GFP_NOFS);
ordered = btrfs_lookup_first_ordered_extent(inode,
alloc_end - 1);
if (ordered &&
ordered->file_offset + ordered->len > alloc_start &&
ordered->file_offset < alloc_end) {
btrfs_put_ordered_extent(ordered);
unlock_extent_cached(&BTRFS_I(inode)->io_tree,
alloc_start, locked_end,
&cached_state, GFP_NOFS);
/*
* we can't wait on the range with the transaction
* running or with the extent lock held
*/
btrfs_wait_ordered_range(inode, alloc_start,
alloc_end - alloc_start);
} else {
if (ordered)
btrfs_put_ordered_extent(ordered);
break;
}
}
cur_offset = alloc_start;
while (1) {
em = btrfs_get_extent(inode, NULL, 0, cur_offset,
alloc_end - cur_offset, 0);
BUG_ON(IS_ERR(em) || !em);
last_byte = min(extent_map_end(em), alloc_end);
last_byte = (last_byte + mask) & ~mask;
if (em->block_start == EXTENT_MAP_HOLE ||
(cur_offset >= inode->i_size &&
!test_bit(EXTENT_FLAG_PREALLOC, &em->flags))) {
ret = btrfs_prealloc_file_range(inode, mode, cur_offset,
last_byte - cur_offset,
1 << inode->i_blkbits,
offset + len,
&alloc_hint);
if (ret < 0) {
free_extent_map(em);
break;
}
}
free_extent_map(em);
cur_offset = last_byte;
if (cur_offset >= alloc_end) {
ret = 0;
break;
}
}
unlock_extent_cached(&BTRFS_I(inode)->io_tree, alloc_start, locked_end,
&cached_state, GFP_NOFS);
btrfs_free_reserved_data_space(inode, alloc_end - alloc_start);
out:
mutex_unlock(&inode->i_mutex);
return ret;
}
const struct file_operations btrfs_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
@ -1248,6 +1360,7 @@ const struct file_operations btrfs_file_operations = {
.open = generic_file_open,
.release = btrfs_release_file,
.fsync = btrfs_sync_file,
.fallocate = btrfs_fallocate,
.unlocked_ioctl = btrfs_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = btrfs_ioctl,

111
fs/btrfs/inode.c
View File

@ -7098,116 +7098,6 @@ int btrfs_prealloc_file_range_trans(struct inode *inode,
min_size, actual_len, alloc_hint, trans);
}
static long btrfs_fallocate(struct inode *inode, int mode,
loff_t offset, loff_t len)
{
struct extent_state *cached_state = NULL;
u64 cur_offset;
u64 last_byte;
u64 alloc_start;
u64 alloc_end;
u64 alloc_hint = 0;
u64 locked_end;
u64 mask = BTRFS_I(inode)->root->sectorsize - 1;
struct extent_map *em;
int ret;
alloc_start = offset & ~mask;
alloc_end = (offset + len + mask) & ~mask;
/* We only support the FALLOC_FL_KEEP_SIZE mode */
if (mode && (mode != FALLOC_FL_KEEP_SIZE))
return -EOPNOTSUPP;
/*
* wait for ordered IO before we have any locks. We'll loop again
* below with the locks held.
*/
btrfs_wait_ordered_range(inode, alloc_start, alloc_end - alloc_start);
mutex_lock(&inode->i_mutex);
ret = inode_newsize_ok(inode, alloc_end);
if (ret)
goto out;
if (alloc_start > inode->i_size) {
ret = btrfs_cont_expand(inode, alloc_start);
if (ret)
goto out;
}
ret = btrfs_check_data_free_space(inode, alloc_end - alloc_start);
if (ret)
goto out;
locked_end = alloc_end - 1;
while (1) {
struct btrfs_ordered_extent *ordered;
/* the extent lock is ordered inside the running
* transaction
*/
lock_extent_bits(&BTRFS_I(inode)->io_tree, alloc_start,
locked_end, 0, &cached_state, GFP_NOFS);
ordered = btrfs_lookup_first_ordered_extent(inode,
alloc_end - 1);
if (ordered &&
ordered->file_offset + ordered->len > alloc_start &&
ordered->file_offset < alloc_end) {
btrfs_put_ordered_extent(ordered);
unlock_extent_cached(&BTRFS_I(inode)->io_tree,
alloc_start, locked_end,
&cached_state, GFP_NOFS);
/*
* we can't wait on the range with the transaction
* running or with the extent lock held
*/
btrfs_wait_ordered_range(inode, alloc_start,
alloc_end - alloc_start);
} else {
if (ordered)
btrfs_put_ordered_extent(ordered);
break;
}
}
cur_offset = alloc_start;
while (1) {
em = btrfs_get_extent(inode, NULL, 0, cur_offset,
alloc_end - cur_offset, 0);
BUG_ON(IS_ERR(em) || !em);
last_byte = min(extent_map_end(em), alloc_end);
last_byte = (last_byte + mask) & ~mask;
if (em->block_start == EXTENT_MAP_HOLE ||
(cur_offset >= inode->i_size &&
!test_bit(EXTENT_FLAG_PREALLOC, &em->flags))) {
ret = btrfs_prealloc_file_range(inode, mode, cur_offset,
last_byte - cur_offset,
1 << inode->i_blkbits,
offset + len,
&alloc_hint);
if (ret < 0) {
free_extent_map(em);
break;
}
}
free_extent_map(em);
cur_offset = last_byte;
if (cur_offset >= alloc_end) {
ret = 0;
break;
}
}
unlock_extent_cached(&BTRFS_I(inode)->io_tree, alloc_start, locked_end,
&cached_state, GFP_NOFS);
btrfs_free_reserved_data_space(inode, alloc_end - alloc_start);
out:
mutex_unlock(&inode->i_mutex);
return ret;
}
static int btrfs_set_page_dirty(struct page *page)
{
return __set_page_dirty_nobuffers(page);
@ -7310,7 +7200,6 @@ static const struct inode_operations btrfs_file_inode_operations = {
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
.fallocate = btrfs_fallocate,
.fiemap = btrfs_fiemap,
};
static const struct inode_operations btrfs_special_inode_operations = {

10
fs/compat.c
View File

@ -257,7 +257,7 @@ static int put_compat_statfs(struct compat_statfs __user *ubuf, struct kstatfs *
}
/*
* The following statfs calls are copies of code from fs/open.c and
* The following statfs calls are copies of code from fs/statfs.c and
* should be checked against those from time to time
*/
asmlinkage long compat_sys_statfs(const char __user *pathname, struct compat_statfs __user *buf)
@ -320,7 +320,9 @@ static int put_compat_statfs64(struct compat_statfs64 __user *ubuf, struct kstat
__put_user(kbuf->f_namelen, &ubuf->f_namelen) ||
__put_user(kbuf->f_fsid.val[0], &ubuf->f_fsid.val[0]) ||
__put_user(kbuf->f_fsid.val[1], &ubuf->f_fsid.val[1]) ||
__put_user(kbuf->f_frsize, &ubuf->f_frsize))
__put_user(kbuf->f_frsize, &ubuf->f_frsize) ||
__put_user(kbuf->f_flags, &ubuf->f_flags) ||
__clear_user(ubuf->f_spare, sizeof(ubuf->f_spare)))
return -EFAULT;
return 0;
}
@ -597,10 +599,8 @@ ssize_t compat_rw_copy_check_uvector(int type,
if (nr_segs > fast_segs) {
ret = -ENOMEM;
iov = kmalloc(nr_segs*sizeof(struct iovec), GFP_KERNEL);
if (iov == NULL) {
*ret_pointer = fast_pointer;
if (iov == NULL)
goto out;
}
}
*ret_pointer = iov;

2
fs/ext4/ext4.h
View File

@ -2065,7 +2065,7 @@ extern int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
extern void ext4_ext_truncate(struct inode *);
extern void ext4_ext_init(struct super_block *);
extern void ext4_ext_release(struct super_block *);
extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset,
extern long ext4_fallocate(struct file *file, int mode, loff_t offset,
loff_t len);
extern int ext4_convert_unwritten_extents(struct inode *inode, loff_t offset,
ssize_t len);

11
fs/ext4/extents.c
View File

@ -3627,14 +3627,15 @@ static void ext4_falloc_update_inode(struct inode *inode,
}
/*
* preallocate space for a file. This implements ext4's fallocate inode
* preallocate space for a file. This implements ext4's fallocate file
* operation, which gets called from sys_fallocate system call.
* For block-mapped files, posix_fallocate should fall back to the method
* of writing zeroes to the required new blocks (the same behavior which is
* expected for file systems which do not support fallocate() system call).
*/
long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
{
struct inode *inode = file->f_path.dentry->d_inode;
handle_t *handle;
loff_t new_size;
unsigned int max_blocks;
@ -3645,7 +3646,7 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
unsigned int credits, blkbits = inode->i_blkbits;
/* We only support the FALLOC_FL_KEEP_SIZE mode */
if (mode && (mode != FALLOC_FL_KEEP_SIZE))
if (mode & ~FALLOC_FL_KEEP_SIZE)
return -EOPNOTSUPP;
/*
@ -3655,10 +3656,6 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
return -EOPNOTSUPP;
/* preallocation to directories is currently not supported */
if (S_ISDIR(inode->i_mode))
return -ENODEV;
map.m_lblk = offset >> blkbits;
/*
* We can't just convert len to max_blocks because

2
fs/ext4/file.c
View File

@ -210,6 +210,7 @@ const struct file_operations ext4_file_operations = {
.fsync = ext4_sync_file,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
.fallocate = ext4_fallocate,
};
const struct inode_operations ext4_file_inode_operations = {
@ -223,7 +224,6 @@ const struct inode_operations ext4_file_inode_operations = {
.removexattr = generic_removexattr,
#endif
.check_acl = ext4_check_acl,
.fallocate = ext4_fallocate,
.fiemap = ext4_fiemap,
};

2
fs/file_table.c
View File

@ -311,7 +311,7 @@ struct file *fget_light(unsigned int fd, int *fput_needed)
struct files_struct *files = current->files;
*fput_needed = 0;
if (likely((atomic_read(&files->count) == 1))) {
if (atomic_read(&files->count) == 1) {
file = fcheck_files(files, fd);
} else {
rcu_read_lock();

258
fs/gfs2/file.c
View File

@ -19,6 +19,8 @@
#include <linux/fs.h>
#include <linux/gfs2_ondisk.h>
#include <linux/ext2_fs.h>
#include <linux/falloc.h>
#include <linux/swap.h>
#include <linux/crc32.h>
#include <linux/writeback.h>
#include <asm/uaccess.h>
@ -610,6 +612,260 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
return generic_file_aio_write(iocb, iov, nr_segs, pos);
}
static void empty_write_end(struct page *page, unsigned from,
unsigned to)
{
struct gfs2_inode *ip = GFS2_I(page->mapping->host);
page_zero_new_buffers(page, from, to);
flush_dcache_page(page);
mark_page_accessed(page);
if (!gfs2_is_writeback(ip))
gfs2_page_add_databufs(ip, page, from, to);
block_commit_write(page, from, to);
}
static int write_empty_blocks(struct page *page, unsigned from, unsigned to)
{
unsigned start, end, next;
struct buffer_head *bh, *head;
int error;
if (!page_has_buffers(page)) {
error = __block_write_begin(page, from, to - from, gfs2_block_map);
if (unlikely(error))
return error;
empty_write_end(page, from, to);
return 0;
}
bh = head = page_buffers(page);
next = end = 0;
while (next < from) {
next += bh->b_size;
bh = bh->b_this_page;
}
start = next;
do {
next += bh->b_size;
if (buffer_mapped(bh)) {
if (end) {
error = __block_write_begin(page, start, end - start,
gfs2_block_map);
if (unlikely(error))
return error;
empty_write_end(page, start, end);
end = 0;
}
start = next;
}
else
end = next;
bh = bh->b_this_page;
} while (next < to);
if (end) {
error = __block_write_begin(page, start, end - start, gfs2_block_map);
if (unlikely(error))
return error;
empty_write_end(page, start, end);
}
return 0;
}
static int fallocate_chunk(struct inode *inode, loff_t offset, loff_t len,
int mode)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct buffer_head *dibh;
int error;
u64 start = offset >> PAGE_CACHE_SHIFT;
unsigned int start_offset = offset & ~PAGE_CACHE_MASK;
u64 end = (offset + len - 1) >> PAGE_CACHE_SHIFT;
pgoff_t curr;
struct page *page;
unsigned int end_offset = (offset + len) & ~PAGE_CACHE_MASK;
unsigned int from, to;
if (!end_offset)
end_offset = PAGE_CACHE_SIZE;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (unlikely(error))
goto out;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
if (gfs2_is_stuffed(ip)) {
error = gfs2_unstuff_dinode(ip, NULL);
if (unlikely(error))
goto out;
}
curr = start;
offset = start << PAGE_CACHE_SHIFT;
from = start_offset;
to = PAGE_CACHE_SIZE;
while (curr <= end) {
page = grab_cache_page_write_begin(inode->i_mapping, curr,
AOP_FLAG_NOFS);
if (unlikely(!page)) {
error = -ENOMEM;
goto out;
}
if (curr == end)
to = end_offset;
error = write_empty_blocks(page, from, to);
if (!error && offset + to > inode->i_size &&
!(mode & FALLOC_FL_KEEP_SIZE)) {
i_size_write(inode, offset + to);
}
unlock_page(page);
page_cache_release(page);
if (error)
goto out;
curr++;
offset += PAGE_CACHE_SIZE;
from = 0;
}
gfs2_dinode_out(ip, dibh->b_data);
mark_inode_dirty(inode);
brelse(dibh);
out:
return error;
}
static void calc_max_reserv(struct gfs2_inode *ip, loff_t max, loff_t *len,
unsigned int *data_blocks, unsigned int *ind_blocks)
{
const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
unsigned int max_blocks = ip->i_alloc->al_rgd->rd_free_clone;
unsigned int tmp, max_data = max_blocks - 3 * (sdp->sd_max_height - 1);
for (tmp = max_data; tmp > sdp->sd_diptrs;) {
tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
max_data -= tmp;
}
/* This calculation isn't the exact reverse of gfs2_write_calc_reserve,
so it might end up with fewer data blocks */
if (max_data <= *data_blocks)
return;
*data_blocks = max_data;
*ind_blocks = max_blocks - max_data;
*len = ((loff_t)max_data - 3) << sdp->sd_sb.sb_bsize_shift;
if (*len > max) {
*len = max;
gfs2_write_calc_reserv(ip, max, data_blocks, ind_blocks);
}
}
static long gfs2_fallocate(struct file *file, int mode, loff_t offset,
loff_t len)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct gfs2_inode *ip = GFS2_I(inode);
unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
loff_t bytes, max_bytes;
struct gfs2_alloc *al;
int error;
loff_t next = (offset + len - 1) >> sdp->sd_sb.sb_bsize_shift;
next = (next + 1) << sdp->sd_sb.sb_bsize_shift;
/* We only support the FALLOC_FL_KEEP_SIZE mode */
if (mode & ~FALLOC_FL_KEEP_SIZE)
return -EOPNOTSUPP;
offset = (offset >> sdp->sd_sb.sb_bsize_shift) <<
sdp->sd_sb.sb_bsize_shift;
len = next - offset;
bytes = sdp->sd_max_rg_data * sdp->sd_sb.sb_bsize / 2;
if (!bytes)
bytes = UINT_MAX;
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &ip->i_gh);
error = gfs2_glock_nq(&ip->i_gh);
if (unlikely(error))
goto out_uninit;
if (!gfs2_write_alloc_required(ip, offset, len))
goto out_unlock;
while (len > 0) {
if (len < bytes)
bytes = len;
al = gfs2_alloc_get(ip);
if (!al) {
error = -ENOMEM;
goto out_unlock;
}
error = gfs2_quota_lock_check(ip);
if (error)
goto out_alloc_put;
retry:
gfs2_write_calc_reserv(ip, bytes, &data_blocks, &ind_blocks);
al->al_requested = data_blocks + ind_blocks;
error = gfs2_inplace_reserve(ip);
if (error) {
if (error == -ENOSPC && bytes > sdp->sd_sb.sb_bsize) {
bytes >>= 1;
goto retry;
}
goto out_qunlock;
}
max_bytes = bytes;
calc_max_reserv(ip, len, &max_bytes, &data_blocks, &ind_blocks);
al->al_requested = data_blocks + ind_blocks;
rblocks = RES_DINODE + ind_blocks + RES_STATFS + RES_QUOTA +
RES_RG_HDR + gfs2_rg_blocks(al);
if (gfs2_is_jdata(ip))
rblocks += data_blocks ? data_blocks : 1;
error = gfs2_trans_begin(sdp, rblocks,
PAGE_CACHE_SIZE/sdp->sd_sb.sb_bsize);
if (error)
goto out_trans_fail;
error = fallocate_chunk(inode, offset, max_bytes, mode);
gfs2_trans_end(sdp);
if (error)
goto out_trans_fail;
len -= max_bytes;
offset += max_bytes;
gfs2_inplace_release(ip);
gfs2_quota_unlock(ip);
gfs2_alloc_put(ip);
}
goto out_unlock;
out_trans_fail:
gfs2_inplace_release(ip);
out_qunlock:
gfs2_quota_unlock(ip);
out_alloc_put:
gfs2_alloc_put(ip);
out_unlock:
gfs2_glock_dq(&ip->i_gh);
out_uninit:
gfs2_holder_uninit(&ip->i_gh);
return error;
}
#ifdef CONFIG_GFS2_FS_LOCKING_DLM
/**
@ -765,6 +1021,7 @@ const struct file_operations gfs2_file_fops = {
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
.setlease = gfs2_setlease,
.fallocate = gfs2_fallocate,
};
const struct file_operations gfs2_dir_fops = {
@ -794,6 +1051,7 @@ const struct file_operations gfs2_file_fops_nolock = {
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
.setlease = generic_setlease,
.fallocate = gfs2_fallocate,
};
const struct file_operations gfs2_dir_fops_nolock = {

258
fs/gfs2/ops_inode.c
View File

@ -18,8 +18,6 @@
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
#include <linux/fiemap.h>
#include <linux/swap.h>
#include <linux/falloc.h>
#include <asm/uaccess.h>
#include "gfs2.h"
@ -1257,261 +1255,6 @@ static int gfs2_removexattr(struct dentry *dentry, const char *name)
return ret;
}
static void empty_write_end(struct page *page, unsigned from,
unsigned to)
{
struct gfs2_inode *ip = GFS2_I(page->mapping->host);
page_zero_new_buffers(page, from, to);
flush_dcache_page(page);
mark_page_accessed(page);
if (!gfs2_is_writeback(ip))
gfs2_page_add_databufs(ip, page, from, to);
block_commit_write(page, from, to);
}
static int write_empty_blocks(struct page *page, unsigned from, unsigned to)
{
unsigned start, end, next;
struct buffer_head *bh, *head;
int error;
if (!page_has_buffers(page)) {
error = __block_write_begin(page, from, to - from, gfs2_block_map);
if (unlikely(error))
return error;
empty_write_end(page, from, to);
return 0;
}
bh = head = page_buffers(page);
next = end = 0;
while (next < from) {
next += bh->b_size;
bh = bh->b_this_page;
}
start = next;
do {
next += bh->b_size;
if (buffer_mapped(bh)) {
if (end) {
error = __block_write_begin(page, start, end - start,
gfs2_block_map);
if (unlikely(error))
return error;
empty_write_end(page, start, end);
end = 0;
}
start = next;
}
else
end = next;
bh = bh->b_this_page;
} while (next < to);
if (end) {
error = __block_write_begin(page, start, end - start, gfs2_block_map);
if (unlikely(error))
return error;
empty_write_end(page, start, end);
}
return 0;
}
static int fallocate_chunk(struct inode *inode, loff_t offset, loff_t len,
int mode)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct buffer_head *dibh;
int error;
u64 start = offset >> PAGE_CACHE_SHIFT;
unsigned int start_offset = offset & ~PAGE_CACHE_MASK;
u64 end = (offset + len - 1) >> PAGE_CACHE_SHIFT;
pgoff_t curr;
struct page *page;
unsigned int end_offset = (offset + len) & ~PAGE_CACHE_MASK;
unsigned int from, to;
if (!end_offset)
end_offset = PAGE_CACHE_SIZE;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (unlikely(error))
goto out;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
if (gfs2_is_stuffed(ip)) {
error = gfs2_unstuff_dinode(ip, NULL);
if (unlikely(error))
goto out;
}
curr = start;
offset = start << PAGE_CACHE_SHIFT;
from = start_offset;
to = PAGE_CACHE_SIZE;
while (curr <= end) {
page = grab_cache_page_write_begin(inode->i_mapping, curr,
AOP_FLAG_NOFS);
if (unlikely(!page)) {
error = -ENOMEM;
goto out;
}
if (curr == end)
to = end_offset;
error = write_empty_blocks(page, from, to);
if (!error && offset + to > inode->i_size &&
!(mode & FALLOC_FL_KEEP_SIZE)) {
i_size_write(inode, offset + to);
}
unlock_page(page);
page_cache_release(page);
if (error)
goto out;
curr++;
offset += PAGE_CACHE_SIZE;
from = 0;
}
gfs2_dinode_out(ip, dibh->b_data);
mark_inode_dirty(inode);
brelse(dibh);
out:
return error;
}
static void calc_max_reserv(struct gfs2_inode *ip, loff_t max, loff_t *len,
unsigned int *data_blocks, unsigned int *ind_blocks)
{
const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
unsigned int max_blocks = ip->i_alloc->al_rgd->rd_free_clone;
unsigned int tmp, max_data = max_blocks - 3 * (sdp->sd_max_height - 1);
for (tmp = max_data; tmp > sdp->sd_diptrs;) {
tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
max_data -= tmp;
}
/* This calculation isn't the exact reverse of gfs2_write_calc_reserve,
so it might end up with fewer data blocks */
if (max_data <= *data_blocks)
return;
*data_blocks = max_data;
*ind_blocks = max_blocks - max_data;
*len = ((loff_t)max_data - 3) << sdp->sd_sb.sb_bsize_shift;
if (*len > max) {
*len = max;
gfs2_write_calc_reserv(ip, max, data_blocks, ind_blocks);
}
}
static long gfs2_fallocate(struct inode *inode, int mode, loff_t offset,
loff_t len)
{
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct gfs2_inode *ip = GFS2_I(inode);
unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
loff_t bytes, max_bytes;
struct gfs2_alloc *al;
int error;
loff_t next = (offset + len - 1) >> sdp->sd_sb.sb_bsize_shift;
next = (next + 1) << sdp->sd_sb.sb_bsize_shift;
/* We only support the FALLOC_FL_KEEP_SIZE mode */
if (mode && (mode != FALLOC_FL_KEEP_SIZE))
return -EOPNOTSUPP;
offset = (offset >> sdp->sd_sb.sb_bsize_shift) <<
sdp->sd_sb.sb_bsize_shift;
len = next - offset;
bytes = sdp->sd_max_rg_data * sdp->sd_sb.sb_bsize / 2;
if (!bytes)
bytes = UINT_MAX;
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &ip->i_gh);
error = gfs2_glock_nq(&ip->i_gh);
if (unlikely(error))
goto out_uninit;
if (!gfs2_write_alloc_required(ip, offset, len))
goto out_unlock;
while (len > 0) {
if (len < bytes)
bytes = len;
al = gfs2_alloc_get(ip);
if (!al) {
error = -ENOMEM;
goto out_unlock;
}
error = gfs2_quota_lock_check(ip);
if (error)
goto out_alloc_put;
retry:
gfs2_write_calc_reserv(ip, bytes, &data_blocks, &ind_blocks);
al->al_requested = data_blocks + ind_blocks;
error = gfs2_inplace_reserve(ip);
if (error) {
if (error == -ENOSPC && bytes > sdp->sd_sb.sb_bsize) {
bytes >>= 1;
goto retry;
}
goto out_qunlock;
}
max_bytes = bytes;
calc_max_reserv(ip, len, &max_bytes, &data_blocks, &ind_blocks);
al->al_requested = data_blocks + ind_blocks;
rblocks = RES_DINODE + ind_blocks + RES_STATFS + RES_QUOTA +
RES_RG_HDR + gfs2_rg_blocks(al);
if (gfs2_is_jdata(ip))
rblocks += data_blocks ? data_blocks : 1;
error = gfs2_trans_begin(sdp, rblocks,
PAGE_CACHE_SIZE/sdp->sd_sb.sb_bsize);
if (error)
goto out_trans_fail;
error = fallocate_chunk(inode, offset, max_bytes, mode);
gfs2_trans_end(sdp);
if (error)
goto out_trans_fail;
len -= max_bytes;
offset += max_bytes;
gfs2_inplace_release(ip);
gfs2_quota_unlock(ip);
gfs2_alloc_put(ip);
}
goto out_unlock;
out_trans_fail:
gfs2_inplace_release(ip);
out_qunlock:
gfs2_quota_unlock(ip);
out_alloc_put:
gfs2_alloc_put(ip);
out_unlock:
gfs2_glock_dq(&ip->i_gh);
out_uninit:
gfs2_holder_uninit(&ip->i_gh);
return error;
}
static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len)
{
@ -1562,7 +1305,6 @@ const struct inode_operations gfs2_file_iops = {
.getxattr = gfs2_getxattr,
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fallocate = gfs2_fallocate,
.fiemap = gfs2_fiemap,
};

2
fs/hpfs/inode.c
View File

@ -281,7 +281,7 @@ int hpfs_setattr(struct dentry *dentry, struct iattr *attr)
attr->ia_size != i_size_read(inode)) {
error = vmtruncate(inode, attr->ia_size);
if (error)
return error;
goto out_unlock;
}
setattr_copy(inode, attr);

3
fs/internal.h
View File

@ -70,8 +70,7 @@ extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
extern void release_mounts(struct list_head *);
extern void umount_tree(struct vfsmount *, int, struct list_head *);
extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
extern int do_add_mount(struct vfsmount *, struct path *, int);
extern void mnt_clear_expiry(struct vfsmount *);
extern int finish_automount(struct vfsmount *, struct path *);
extern void mnt_make_longterm(struct vfsmount *);
extern void mnt_make_shortterm(struct vfsmount *);

10
fs/ioctl.c
View File

@ -86,7 +86,7 @@ int fiemap_fill_next_extent(struct fiemap_extent_info *fieinfo, u64 logical,
u64 phys, u64 len, u32 flags)
{
struct fiemap_extent extent;
struct fiemap_extent *dest = fieinfo->fi_extents_start;
struct fiemap_extent __user *dest = fieinfo->fi_extents_start;
/* only count the extents */
if (fieinfo->fi_extents_max == 0) {
@ -173,6 +173,7 @@ static int fiemap_check_ranges(struct super_block *sb,
static int ioctl_fiemap(struct file *filp, unsigned long arg)
{
struct fiemap fiemap;
struct fiemap __user *ufiemap = (struct fiemap __user *) arg;
struct fiemap_extent_info fieinfo = { 0, };
struct inode *inode = filp->f_path.dentry->d_inode;
struct super_block *sb = inode->i_sb;
@ -182,8 +183,7 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
if (!inode->i_op->fiemap)
return -EOPNOTSUPP;
if (copy_from_user(&fiemap, (struct fiemap __user *)arg,
sizeof(struct fiemap)))
if (copy_from_user(&fiemap, ufiemap, sizeof(fiemap)))
return -EFAULT;
if (fiemap.fm_extent_count > FIEMAP_MAX_EXTENTS)
@ -196,7 +196,7 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
fieinfo.fi_flags = fiemap.fm_flags;
fieinfo.fi_extents_max = fiemap.fm_extent_count;
fieinfo.fi_extents_start = (struct fiemap_extent *)(arg + sizeof(fiemap));
fieinfo.fi_extents_start = ufiemap->fm_extents;
if (fiemap.fm_extent_count != 0 &&
!access_ok(VERIFY_WRITE, fieinfo.fi_extents_start,
@ -209,7 +209,7 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
error = inode->i_op->fiemap(inode, &fieinfo, fiemap.fm_start, len);
fiemap.fm_flags = fieinfo.fi_flags;
fiemap.fm_mapped_extents = fieinfo.fi_extents_mapped;
if (copy_to_user((char *)arg, &fiemap, sizeof(fiemap)))
if (copy_to_user(ufiemap, &fiemap, sizeof(fiemap)))
error = -EFAULT;
return error;

31
fs/namei.c
View File

@ -923,37 +923,13 @@ static int follow_automount(struct path *path, unsigned flags,
if (!mnt) /* mount collision */
return 0;
/* The new mount record should have at least 2 refs to prevent it being
* expired before we get a chance to add it
*/
BUG_ON(mnt_get_count(mnt) < 2);
err = finish_automount(mnt, path);
if (mnt->mnt_sb == path->mnt->mnt_sb &&
mnt->mnt_root == path->dentry) {
mnt_clear_expiry(mnt);
mntput(mnt);
mntput(mnt);
return -ELOOP;
}
/* We need to add the mountpoint to the parent. The filesystem may
* have placed it on an expiry list, and so we need to make sure it
* won't be expired under us if do_add_mount() fails (do_add_mount()
* will eat a reference unconditionally).
*/
mntget(mnt);
err = do_add_mount(mnt, path, path->mnt->mnt_flags | MNT_SHRINKABLE);
switch (err) {
case -EBUSY:
/* Someone else made a mount here whilst we were busy */
err = 0;
default:
mnt_clear_expiry(mnt);
mntput(mnt);
mntput(mnt);
return err;
return 0;
case 0:
mntput(mnt);
dput(path->dentry);
if (*need_mntput)
mntput(path->mnt);
@ -961,7 +937,10 @@ static int follow_automount(struct path *path, unsigned flags,
path->dentry = dget(mnt->mnt_root);
*need_mntput = true;
return 0;
default:
return err;
}
}
/*

63
fs/namespace.c
View File

@ -1872,6 +1872,8 @@ out:
return err;
}
static int do_add_mount(struct vfsmount *, struct path *, int);
/*
* create a new mount for userspace and request it to be added into the
* namespace's tree
@ -1880,6 +1882,7 @@ static int do_new_mount(struct path *path, char *type, int flags,
int mnt_flags, char *name, void *data)
{
struct vfsmount *mnt;
int err;
if (!type)
return -EINVAL;
@ -1892,14 +1895,47 @@ static int do_new_mount(struct path *path, char *type, int flags,
if (IS_ERR(mnt))
return PTR_ERR(mnt);
return do_add_mount(mnt, path, mnt_flags);
err = do_add_mount(mnt, path, mnt_flags);
if (err)
mntput(mnt);
return err;
}
int finish_automount(struct vfsmount *m, struct path *path)
{
int err;
/* The new mount record should have at least 2 refs to prevent it being
* expired before we get a chance to add it
*/
BUG_ON(mnt_get_count(m) < 2);
if (m->mnt_sb == path->mnt->mnt_sb &&
m->mnt_root == path->dentry) {
err = -ELOOP;
goto fail;
}
err = do_add_mount(m, path, path->mnt->mnt_flags | MNT_SHRINKABLE);
if (!err)
return 0;
fail:
/* remove m from any expiration list it may be on */
if (!list_empty(&m->mnt_expire)) {
down_write(&namespace_sem);
br_write_lock(vfsmount_lock);
list_del_init(&m->mnt_expire);
br_write_unlock(vfsmount_lock);
up_write(&namespace_sem);
}
mntput(m);
mntput(m);
return err;
}
/*
* add a mount into a namespace's mount tree
* - this unconditionally eats one of the caller's references to newmnt.
*/
int do_add_mount(struct vfsmount *newmnt, struct path *path, int mnt_flags)
static int do_add_mount(struct vfsmount *newmnt, struct path *path, int mnt_flags)
{
int err;
@ -1926,15 +1962,10 @@ int do_add_mount(struct vfsmount *newmnt, struct path *path, int mnt_flags)
goto unlock;
newmnt->mnt_flags = mnt_flags;
if ((err = graft_tree(newmnt, path)))
goto unlock;
up_write(&namespace_sem);
return 0;
err = graft_tree(newmnt, path);
unlock:
up_write(&namespace_sem);
mntput(newmnt);
return err;
}
@ -1955,20 +1986,6 @@ void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list)
}
EXPORT_SYMBOL(mnt_set_expiry);
/*
* Remove a vfsmount from any expiration list it may be on
*/
void mnt_clear_expiry(struct vfsmount *mnt)
{
if (!list_empty(&mnt->mnt_expire)) {
down_write(&namespace_sem);
br_write_lock(vfsmount_lock);
list_del_init(&mnt->mnt_expire);
br_write_unlock(vfsmount_lock);
up_write(&namespace_sem);
}
}
/*
* process a list of expirable mountpoints with the intent of discarding any
* mountpoints that aren't in use and haven't been touched since last we came

10
fs/ocfs2/file.c
View File

@ -1989,20 +1989,20 @@ int ocfs2_change_file_space(struct file *file, unsigned int cmd,
return __ocfs2_change_file_space(file, inode, file->f_pos, cmd, sr, 0);
}
static long ocfs2_fallocate(struct inode *inode, int mode, loff_t offset,
static long ocfs2_fallocate(struct file *file, int mode, loff_t offset,
loff_t len)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_space_resv sr;
int change_size = 1;
int cmd = OCFS2_IOC_RESVSP64;
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
return -EOPNOTSUPP;
if (!ocfs2_writes_unwritten_extents(osb))
return -EOPNOTSUPP;
if (S_ISDIR(inode->i_mode))
return -ENODEV;
if (mode & FALLOC_FL_KEEP_SIZE)
change_size = 0;
@ -2610,7 +2610,6 @@ const struct inode_operations ocfs2_file_iops = {
.getxattr = generic_getxattr,
.listxattr = ocfs2_listxattr,
.removexattr = generic_removexattr,
.fallocate = ocfs2_fallocate,
.fiemap = ocfs2_fiemap,
};
@ -2642,6 +2641,7 @@ const struct file_operations ocfs2_fops = {
.flock = ocfs2_flock,
.splice_read = ocfs2_file_splice_read,
.splice_write = ocfs2_file_splice_write,
.fallocate = ocfs2_fallocate,
};
const struct file_operations ocfs2_dops = {

4
fs/open.c
View File

@ -255,10 +255,10 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
if (((offset + len) > inode->i_sb->s_maxbytes) || ((offset + len) < 0))
return -EFBIG;
if (!inode->i_op->fallocate)
if (!file->f_op->fallocate)
return -EOPNOTSUPP;
return inode->i_op->fallocate(inode, mode, offset, len);
return file->f_op->fallocate(file, mode, offset, len);
}
SYSCALL_DEFINE(fallocate)(int fd, int mode, loff_t offset, loff_t len)

56
fs/xfs/linux-2.6/xfs_file.c
View File

@ -37,6 +37,7 @@
#include "xfs_trace.h"
#include <linux/dcache.h>
#include <linux/falloc.h>
static const struct vm_operations_struct xfs_file_vm_ops;
@ -882,6 +883,60 @@ out_unlock:
return ret;
}
STATIC long
xfs_file_fallocate(
struct file *file,
int mode,
loff_t offset,
loff_t len)
{
struct inode *inode = file->f_path.dentry->d_inode;
long error;
loff_t new_size = 0;
xfs_flock64_t bf;
xfs_inode_t *ip = XFS_I(inode);
int cmd = XFS_IOC_RESVSP;
if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
return -EOPNOTSUPP;
bf.l_whence = 0;
bf.l_start = offset;
bf.l_len = len;
xfs_ilock(ip, XFS_IOLOCK_EXCL);
if (mode & FALLOC_FL_PUNCH_HOLE)
cmd = XFS_IOC_UNRESVSP;
/* check the new inode size is valid before allocating */
if (!(mode & FALLOC_FL_KEEP_SIZE) &&
offset + len > i_size_read(inode)) {
new_size = offset + len;
error = inode_newsize_ok(inode, new_size);
if (error)
goto out_unlock;
}
error = -xfs_change_file_space(ip, cmd, &bf, 0, XFS_ATTR_NOLOCK);
if (error)
goto out_unlock;
/* Change file size if needed */
if (new_size) {
struct iattr iattr;
iattr.ia_valid = ATTR_SIZE;
iattr.ia_size = new_size;
error = -xfs_setattr(ip, &iattr, XFS_ATTR_NOLOCK);
}
out_unlock:
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
return error;
}
STATIC int
xfs_file_open(
struct inode *inode,
@ -1000,6 +1055,7 @@ const struct file_operations xfs_file_operations = {
.open = xfs_file_open,
.release = xfs_file_release,
.fsync = xfs_file_fsync,
.fallocate = xfs_file_fallocate,
};
const struct file_operations xfs_dir_file_operations = {

57
fs/xfs/linux-2.6/xfs_iops.c
View File

@ -46,7 +46,6 @@
#include <linux/namei.h>
#include <linux/posix_acl.h>
#include <linux/security.h>
#include <linux/falloc.h>
#include <linux/fiemap.h>
#include <linux/slab.h>
@ -505,61 +504,6 @@ xfs_vn_setattr(
return -xfs_setattr(XFS_I(dentry->d_inode), iattr, 0);
}
STATIC long
xfs_vn_fallocate(
struct inode *inode,
int mode,
loff_t offset,
loff_t len)
{
long error;
loff_t new_size = 0;
xfs_flock64_t bf;
xfs_inode_t *ip = XFS_I(inode);
int cmd = XFS_IOC_RESVSP;
/* preallocation on directories not yet supported */
error = -ENODEV;
if (S_ISDIR(inode->i_mode))
goto out_error;
bf.l_whence = 0;
bf.l_start = offset;
bf.l_len = len;
xfs_ilock(ip, XFS_IOLOCK_EXCL);
if (mode & FALLOC_FL_PUNCH_HOLE)
cmd = XFS_IOC_UNRESVSP;
/* check the new inode size is valid before allocating */
if (!(mode & FALLOC_FL_KEEP_SIZE) &&
offset + len > i_size_read(inode)) {
new_size = offset + len;
error = inode_newsize_ok(inode, new_size);
if (error)
goto out_unlock;
}
error = -xfs_change_file_space(ip, cmd, &bf, 0, XFS_ATTR_NOLOCK);
if (error)
goto out_unlock;
/* Change file size if needed */
if (new_size) {
struct iattr iattr;
iattr.ia_valid = ATTR_SIZE;
iattr.ia_size = new_size;
error = -xfs_setattr(ip, &iattr, XFS_ATTR_NOLOCK);
}
out_unlock:
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
out_error:
return error;
}
#define XFS_FIEMAP_FLAGS (FIEMAP_FLAG_SYNC|FIEMAP_FLAG_XATTR)
/*
@ -653,7 +597,6 @@ static const struct inode_operations xfs_inode_operations = {
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
.listxattr = xfs_vn_listxattr,
.fallocate = xfs_vn_fallocate,
.fiemap = xfs_vn_fiemap,
};

2
include/linux/file.h
View File

@ -23,7 +23,7 @@ extern struct file *alloc_file(struct path *, fmode_t mode,
static inline void fput_light(struct file *file, int fput_needed)
{
if (unlikely(fput_needed))
if (fput_needed)
fput(file);
}

8
include/linux/fs.h
View File

@ -1483,8 +1483,8 @@ struct fiemap_extent_info {
unsigned int fi_flags; /* Flags as passed from user */
unsigned int fi_extents_mapped; /* Number of mapped extents */
unsigned int fi_extents_max; /* Size of fiemap_extent array */
struct fiemap_extent *fi_extents_start; /* Start of fiemap_extent
* array */
struct fiemap_extent __user *fi_extents_start; /* Start of
fiemap_extent array */
};
int fiemap_fill_next_extent(struct fiemap_extent_info *info, u64 logical,
u64 phys, u64 len, u32 flags);
@ -1552,6 +1552,8 @@ struct file_operations {
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
int (*setlease)(struct file *, long, struct file_lock **);
long (*fallocate)(struct file *file, int mode, loff_t offset,
loff_t len);
};
#define IPERM_FLAG_RCU 0x0001
@ -1582,8 +1584,6 @@ struct inode_operations {
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *);
void (*truncate_range)(struct inode *, loff_t, loff_t);
long (*fallocate)(struct inode *inode, int mode, loff_t offset,
loff_t len);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start,
u64 len);
} ____cacheline_aligned;